The accuracy of Bird elements is typically +/- 5% of the full scale value. For a 100 W Slug, that is +/- 5 Watts. So theoretically speaking, with 5W in, and 0 registered on the meter, the meter is still within its rated accuracy.
Additionally on the model 43 meter, there is meter scale end compression. To get the most accurate reading, one would want to have the 5W reading at the middle of the meter range, which means that one would want a 10W slug. Unfortunately I do not believe that Bird makes a 10W HF slug any more. Perhaps they need an Elecraft W2 ?? 73 K1NR On Thu, 8 Dec 2011 16:47:27 -0600 Nate Bargmann <[email protected]> wrote: > >From my experience, trying to measure 5W with a 100W > element leads to > very inaccurate readings. The Bird is most accurate when > the reading is > as near to full scale as possible. That means a 5W HF > element (is that > even available?) would be ideal provided no more than 5W > is put through > the meter. A 10W element would be less accurate but > provide a safety > margin for the meter. Even better would be to have both > elements and > use the 10W one to get in the ballpark and the 5W one for > a final check. > > 73, de Nate N0NB >> > > -- > > "The optimist proclaims that we live in the best of all > possible worlds. The pessimist fears this is true." > > Ham radio, Linux, bikes, and more: http://www.n0nb.us > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: > http://www.qsl.net/donate.html --------------------------------------------------------------------- Web mail provided by NuNet, Inc. The Premier National provider. http://www.nni.com/ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
